Method and system for controlling traffic over a computer network

a computer network and traffic control technology, applied in data switching networks, frequency-division multiplexes, high-level techniques, etc., can solve the problem of selective placement of limits, and achieve the effect of not negatively affecting the performance of the host device, high throughput, and short tim
US20100128605A1Active Publication Date: 2010-05-27AVAGO TECH INT SALES PTE LTD
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
AVAGO TECH INT SALES PTE LTD
Publication Date
2010-05-27

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Abstract

A rate limiter incorporated in a server connected to a network. The rate limiter is adapted to reduce congestion in the network in response to a congestion notification message. The server is adapted to send packets over the network. The rate limiter includes at least one of: a server rate limiter engine adapted to rate limit the packets in response to the server; a virtual machine rate limiter engine adapted to rate limit the packets in response to a virtual machine associated with the packets, the virtual machine hosted by the server; a flow rate limiter engine adapted to rate limit the packets in response to a flow associated with the packets; the flow being one of a plurality of flows transporting packets over the network; and a transmit engine adapted to rate limit the packets in response to a virtual pipe of the network for transmitting the packets.
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Description

FIELD OF THE INVENTION

[0001] This invention relates generally to traffic control in a computer network, and more specifically to rate limiting in response to congestion in the network.BACKGROUND OF THE INVENTION

[0002] Network congestion can occur when too much data is sent through a particular link or node of a network. Such congestion may negatively affect the quality of service provided by the network. For example, it may cause queuing delays, packet losses, and blocked connections. Therefore, it is desirable to make sure that the amount of traffic passing through each node of the network does not exceed what the node can handle.

[0003] A typical scenario of network congestion is illustrated in FIG. 1. As illustrated, the network includes two servers A and B 100, 102, a switch 104, and two disks T1 and T2108, 110. The number of devices shown in FIG. 1 is limited for illustration purposes only. Additional servers, switches, disks, and other types of devices may be connected to the netw...

Claims

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